From 66a3dca25dab2c4b71e556df56e4c6bcbfe889f5 Mon Sep 17 00:00:00 2001
From: Matthias Ringwald <matthias@ringwald.ch>
Date: Mon, 1 Jun 2015 00:19:40 +0200
Subject: [PATCH] get arduino peripheral demo to work

---
 .../examples/LEPeripheral/LEPeripheral.ino    | 33 ++++++++++++-------
 1 file changed, 21 insertions(+), 12 deletions(-)

diff --git a/platforms/arduino/examples/LEPeripheral/LEPeripheral.ino b/platforms/arduino/examples/LEPeripheral/LEPeripheral.ino
index 45b035a7b..1d318c4a5 100644
--- a/platforms/arduino/examples/LEPeripheral/LEPeripheral.ino
+++ b/platforms/arduino/examples/LEPeripheral/LEPeripheral.ino
@@ -2,11 +2,11 @@
 #include <BTstack.h>
 #include <SPI.h>
 
-static uint16_t value_handle;
+static char characteristic_data = 'H';
 
 void setup(void){
 
-    setup_printf(9600);
+    Serial.begin(9600);
 
     // set callbacks
     BTstack.setBLEDeviceConnectedCallback(deviceConnectedCallback);
@@ -15,15 +15,18 @@ void setup(void){
     BTstack.setGATTCharacteristicWrite(gattWriteCallback);
 
     // setup GATT Database
-    int flags = 0;
-    uint8_t * data = NULL;
-    uint16_t data_len = 0;
-    BTstack.addGATTService(new UUID("B8E06067-62AD-41BA-9231-206AE80AB550"));
-    value_handle = BTstack.addGATTCharacteristic(new UUID("f897177b-aee8-4767-8ecc-cc694fd5fcee"), flags, "This is a String!");
+    BTstack.addGATTService(new UUID("B8E06067-62AD-41BA-9231-206AE80AB551"));
+    BTstack.addGATTCharacteristic(new UUID("f897177b-aee8-4767-8ecc-cc694fd5fcef"), ATT_PROPERTY_READ, "This is a String!");
+    BTstack.addGATTCharacteristicDynamic(new UUID("f897177b-aee8-4767-8ecc-cc694fd5fce0"), ATT_PROPERTY_READ | ATT_PROPERTY_WRITE | ATT_PROPERTY_NOTIFY, 0);
+
+    // use dummy address to force refresh on iOS devices
+    bd_addr_t dummy = { 1,2,3,4,5,6};
+    BTstack.setPublicBdAddr(dummy);
 
     // startup Bluetooth and activate advertisements
     BTstack.setup();
     BTstack.startAdvertising();
+    // BTstack.enablePacketLogger();
 }
 
 
@@ -34,7 +37,7 @@ void loop(void){
 void deviceConnectedCallback(BLEStatus status, BLEDevice *device) {
     switch (status){
         case BLE_STATUS_OK:
-            printf("Device connected!\n");
+            Serial.println("Device connected!");
             break;
         default:
             break;
@@ -42,7 +45,7 @@ void deviceConnectedCallback(BLEStatus status, BLEDevice *device) {
 }
 
 void deviceDisconnectedCallback(BLEDevice * device){
-    printf("Disconnected.\n");
+    Serial.println("Disconnected.");
 }
 
 // ATT Client Read Callback for Dynamic Data
@@ -52,8 +55,12 @@ void deviceDisconnectedCallback(BLEDevice * device){
 // @param buffer 
 // @param buffer_size
 uint16_t gattReadCallback(uint16_t value_handle, uint8_t * buffer, uint16_t buffer_size){
-    printf("gattReadCallback, handle %u\n", value_handle);
-    return 0;
+    if (buffer){
+        Serial.print("gattReadCallback, value: ");
+        Serial.println(characteristic_data, HEX);
+        buffer[0] = characteristic_data;
+    }
+    return 1;
 }
 
 // ATT Client Write Callback for Dynamic Data
@@ -62,7 +69,9 @@ uint16_t gattReadCallback(uint16_t value_handle, uint8_t * buffer, uint16_t buff
 // @param buffer_size
 // @returns 0 if write was ok, ATT_ERROR_INVALID_OFFSET if offset is larger than max buffer
 int gattWriteCallback(uint16_t value_handle, uint8_t *buffer, uint16_t buffer_size){
-    printf("gattWriteCallback, handle %u\n", value_handle);
+    characteristic_data = buffer[0];
+    Serial.print("gattWriteCallback , value ");
+    Serial.println(characteristic_data, HEX);
     return 0;
 }